189131073 has 16 divisors (see below), whose sum is σ = 271924800. Its totient is φ = 116536320.

The previous prime is 189131057. The next prime is 189131081. The reversal of 189131073 is 370131981.

It is not a de Polignac number, because 189131073 - 2⁴ = 189131057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189131003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38128 + ... + 42801.

It is an arithmetic number, because the mean of its divisors is an integer number (16995300).

Almost surely, 2^189131073 is an apocalyptic number.

It is an amenable number.

189131073 is a deficient number, since it is larger than the sum of its proper divisors (82793727).

189131073 is a wasteful number, since it uses less digits than its factorization.

189131073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80992.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 189131073 is about 13752.4933375734. The cubic root of 189131073 is about 574.0119874716.

The spelling of 189131073 in words is "one hundred eighty-nine million, one hundred thirty-one thousand, seventy-three".